I have actually made some progress in finding out what is going on but
still stumped. Here is the nub of the issue as far as I can see.
Eventually, in both the case where using a treepanel or not, a GeoExt
callback on "afterlayout" results in a
call to OpenLayers Map Render.
In render you have:
this.div.appendChild(this.viewPortDiv);
In the application without treepanel, this results in the the GMap2 div
(a child of viewPortDiv) taking on the
same client width and hieght as div. When you bind mappanel to a
treepanel however, the GMap2 div remains with a client height and width
of zero. viewPortDiv however does change to fit the parent div.
Now I just dont know enough about DOM to understand what difference I
should be looking for in viewPortDiv and its children that can allow
such a thing to happen. At first glance, viewPortDiv and the child GMap2
div look the same but then there are a lot of properties. Can anyone
give me some hints please?
--
Phil Scadden, Senior Scientist GNS Science Ltd 764 Cumberland St,
Private Bag 1930, Dunedin, New Zealand Ph +64 3 4799663, fax +64 3 477 5232
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